Well... I definitely won't try it then, I've never used it, just heard of its virtues extolled on the interweb.
I'm a diver and for fixing things we have the holy trinity.
Cable ties.
Duct tape (cloth).
Sikaflex.
If we can't fix a one off multimillion dollar installation with these, then it's unfixable
Perhaps you could use a soldering iron to melt cable ties into the crack, then Sikaflex some duct tape over the top to really seal it in?